Boston, of course, lost Ray Allen to the Miami Heat, and O.J. Mayo, who was rumored to be of interest, is slated to become a member of the Dallas Mavericks. Courtney Lee is another guard the Celtics have been linked to, but the C's might not be able to afford him now that Jason Terry has signed for the midlevel exception.

Delfino, who has played the last three seasons in Milwaukee, averaged 9 points while shooting 36 percent from beyond the arc in 28.5 minutes per game last year. He averaged a career-high 11.5 points and 32.4 minutes per contest for the Bucks in 2010-11.

The Celtics would only be able to offer Delfino their bi-annual exception, which is worth about $1.9 million, if they're unable to work out a sign-and-trade with the Bucks. That could make it difficult to bring in the 6-foot-6 swingman, but the possibility is at least out there.